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2122102011 = 310123832939
BaseRepresentation
bin111111001111100…
…1011010011111011
312110220002221200210
41332133023103323
513321224231021
6550324002203
7103405366221
oct17637132373
95426087623
102122102011
11999964717
124b2830363
1327a858c83
14161ba0b11
15c6480e76
hex7e7cb4fb

2122102011 has 16 divisors (see below), whose sum is σ = 2859655680. Its totient is φ = 1399663200.

The previous prime is 2122102007. The next prime is 2122102049. The reversal of 2122102011 is 1102012212.

It is not a de Polignac number, because 2122102011 - 22 = 2122102007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122102111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 720580 + ... + 723518.

It is an arithmetic number, because the mean of its divisors is an integer number (178728480).

Almost surely, 22122102011 is an apocalyptic number.

2122102011 is a deficient number, since it is larger than the sum of its proper divisors (737553669).

2122102011 is a wasteful number, since it uses less digits than its factorization.

2122102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2122102011 is about 46066.2784583257. The cubic root of 2122102011 is about 1285.0560944894.

Adding to 2122102011 its reverse (1102012212), we get a palindrome (3224114223).

The spelling of 2122102011 in words is "two billion, one hundred twenty-two million, one hundred two thousand, eleven".

Divisors: 1 3 101 303 2383 2939 7149 8817 240683 296839 722049 890517 7003637 21010911 707367337 2122102011